code: def get_non_trading_days(start, end):
      non_trading_rules = []
  
      start = canonicalize_datetime(start)
      end = canonicalize_datetime(end)
  
      weekends = rrule.rrule(
          rrule.YEARLY,
          byweekday=(rrule.SA, rrule.SU),
          cache=True,
          dtstart=start,
          until=end,
      )
      non_trading_rules.append(weekends)
  
      new_years = rrule.rrule(
          rrule.MONTHLY,
          byyearday=1,
          cache=True,
          dtstart=start,
          until=end,
      )
      non_trading_rules.append(new_years)
  
      new_years_sunday = rrule.rrule(
          rrule.MONTHLY,
          byyearday=2,
          byweekday=rrule.MO,
          cache=True,
          dtstart=start,
          until=end,
      )
      non_trading_rules.append(new_years_sunday)
  
      mlk_day = rrule.rrule(
          rrule.MONTHLY,
          bymonth=1,
          byweekday=(rrule.MO(+3)),
          cache=True,
          dtstart=datetime(1998, 1, 1, tzinfo=pytz.utc),
          until=end,
      )
      non_trading_rules.append(mlk_day)
  
      presidents_day = rrule.rrule(
          rrule.MONTHLY,
          bymonth=2,
          byweekday=(rrule.MO(3)),
          cache=True,
          dtstart=start,
          until=end,
      )
      non_trading_rules.append(presidents_day)
  
      good_friday = rrule.rrule(
          rrule.DAILY, byeaster=-2, cache=True, dtstart=start, until=end
      )
      non_trading_rules.append(good_friday)
  
      memorial_day = rrule.rrule(
          rrule.MONTHLY,
          bymonth=5,
          byweekday=(rrule.MO(-1)),
          cache=True,
          dtstart=start,
          until=end,
      )
      non_trading_rules.append(memorial_day)
  
      july_4th = rrule.rrule(
          rrule.MONTHLY,
          bymonth=7,
          bymonthday=4,
          cache=True,
          dtstart=start,
          until=end,
      )
      non_trading_rules.append(july_4th)
  
      july_4th_sunday = rrule.rrule(
          rrule.MONTHLY,
          bymonth=7,
          bymonthday=5,
          byweekday=rrule.MO,
          cache=True,
          dtstart=start,
          until=end,
      )
      non_trading_rules.append(july_4th_sunday)
  
      july_4th_saturday = rrule.rrule(
          rrule.MONTHLY,
          bymonth=7,
          bymonthday=3,
          byweekday=rrule.FR,
          cache=True,
          dtstart=start,
          until=end,
      )
      non_trading_rules.append(july_4th_saturday)
  
      labor_day = rrule.rrule(
          rrule.MONTHLY,
          bymonth=9,
          byweekday=(rrule.MO(1)),
          cache=True,
          dtstart=start,
          until=end,
      )
      non_trading_rules.append(labor_day)
  
      thanksgiving = rrule.rrule(
          rrule.MONTHLY,
          bymonth=11,
          byweekday=(rrule.TH(4)),
          cache=True,
          dtstart=start,
          until=end,
      )
      non_trading_rules.append(thanksgiving)
  
      christmas = rrule.rrule(
          rrule.MONTHLY,
          bymonth=12,
          bymonthday=25,
          cache=True,
          dtstart=start,
          until=end,
      )
      non_trading_rules.append(christmas)
  
      christmas_sunday = rrule.rrule(
          rrule.MONTHLY,
          bymonth=12,
          bymonthday=26,
          byweekday=rrule.MO,
          cache=True,
          dtstart=start,
          until=end,
      )
      non_trading_rules.append(christmas_sunday)
  
      # If Christmas is a Saturday then 24th, a Friday is observed.
      christmas_saturday = rrule.rrule(
          rrule.MONTHLY,
          bymonth=12,
          bymonthday=24,
          byweekday=rrule.FR,
          cache=True,
          dtstart=start,
          until=end,
      )
      non_trading_rules.append(christmas_saturday)
  
      non_trading_ruleset = rrule.rruleset()
  
      for rule in non_trading_rules:
          non_trading_ruleset.rrule(rule)
  
      non_trading_days = non_trading_ruleset.between(
          start, end, inc=True
      )
  
      # Add September 11th closings
      # https://en.wikipedia.org/wiki/Aftermath_of_the_September_11_attacks
      # Due to the terrorist attacks, the stock market did not open on 9/11/2001
      # It did not open again until 9/17/2001.
      #
      #    September 2001
      # Su Mo Tu We Th Fr Sa
      #                    1
      #  2  3  4  5  6  7  8
      #  9 10 11 12 13 14 15
      # 16 17 18 19 20 21 22
      # 23 24 25 26 27 28 29
      # 30
  
      for day_num in range(11, 17):
          non_trading_days.append(
              datetime(2001, 9, day_num, tzinfo=pytz.utc)
          )
  
      # Add closings due to Hurricane Sandy in 2012
      # https://en.wikipedia.org/wiki/Hurricane_sandy
      #
      # The stock exchange was closed due to Hurricane Sandy's
      # impact on New York.
      # It closed on 10/29 and 10/30, reopening on 10/31
      #     October 2012
      # Su Mo Tu We Th Fr Sa
      #     1  2  3  4  5  6
      #  7  8  9 10 11 12 13
      # 14 15 16 17 18 19 20
      # 21 22 23 24 25 26 27
      # 28 29 30 31
  
      for day_num in range(29, 31):
          non_trading_days.append(
              datetime(2012, 10, day_num, tzinfo=pytz.utc)
          )
  
      # Misc closings from NYSE listing.
      # http://www.nyse.com/pdfs/closings.pdf
      #
      # National Days of Mourning
      # - President Richard Nixon
      non_trading_days.append(datetime(1994, 4, 27, tzinfo=pytz.utc))
      # - President Ronald W. Reagan - June 11, 2004
      non_trading_days.append(datetime(2004, 6, 11, tzinfo=pytz.utc))
      # - President Gerald R. Ford - Jan 2, 2007
      non_trading_days.append(datetime(2007, 1, 2, tzinfo=pytz.utc))
  
      non_trading_days.sort()
      return pd.DatetimeIndex(non_trading_days)
  
file_path: zipline/zipline/utils/tradingcalendar.py
imports: import pandas
  import pytz
  from datetime import datetime
  from dateutil import rrule
  from functools import partial
label_desc: Use image node_id 2 for calling a global function with example usage: get_non_trading_days(start, end) and returns: pd